Pith Number

pith:TPYJK4SY

pith:2012:TPYJK4SYC2ZZ5ERLQQC4MJ3UUO

not attested not anchored not stored refs pending

Bottleneck Non-Crossing Matching in the Plane

A. Karim Abu-Affash, Matthew J. Katz, Paz Carmi, Yohai Trabelsi

arxiv:1202.4146 v1 · 2012-02-19 · cs.CG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TPYJK4SYC2ZZ5ERLQQC4MJ3UUO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:02:00.117484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bf095725816b39e922b8405c62774a397e059f53ce6ea3e9e1848f8bc6c2ea1

Aliases

arxiv: 1202.4146 · arxiv_version: 1202.4146v1 · doi: 10.48550/arxiv.1202.4146 · pith_short_12: TPYJK4SYC2ZZ · pith_short_16: TPYJK4SYC2ZZ5ERL · pith_short_8: TPYJK4SY

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/TPYJK4SYC2ZZ5ERLQQC4MJ3UUO \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9bf095725816b39e922b8405c62774a397e059f53ce6ea3e9e1848f8bc6c2ea1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1c50a157b4f6f03d7e83faa035173ebe79c13657a9c8b9b9fecd6525fe7ce9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-02-19T11:30:53Z",
    "title_canon_sha256": "7398c3942c6b1c1b6c116519d542bc9d86a214d65b0b29f5ad0d34dbfa0a8ff2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4146",
    "kind": "arxiv",
    "version": 1
  }
}